Wide temperature environment type impact device

Abstract

The application provides a wide temperature environment type impact device, which comprises a carrier table, a hammer, a reset member and a heat preservation box with an inner cavity, the heat preservation box is provided with a cold source channel and a heat source channel which are communicated with the inner cavity to change the temperature of the inner cavity, the heat preservation box comprises a first panel, the first panel is provided with a long strip-shaped through hole which is communicated with the outside of the heat preservation box and the inner cavity, a part of the carrier table penetrates through the long strip-shaped through hole and extends into the inner cavity, the moving direction of the hammer is consistent with the length direction of the long strip-shaped through hole, the hammer is used for impacting the carrier table to make the carrier table move along the length direction of the long strip-shaped through hole, and the reset member has two connecting ends, one of which is fixed, and the other is connected with the carrier table. The impact device simulates a wide temperature environment through the heat preservation box provided with cold and heat channels, only the part which needs to be impacted is arranged in the heat preservation box, the inner cavity of the heat preservation box is small, a large amount of electric energy is not needed to be consumed whether the temperature is raised or lowered, the structure is simple, the land occupation is small, and energy consumption can be saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical product inspection device, and particularly relates to a wide-temperature-environment impact device. BACKGROUND

[0002] When a gun is fired, a huge recoil force is generated, so that an optical product (such as a sighting scope, a range finder, a telescope, etc.) installed on the gun bears a huge impact force. Therefore, the optical product needs to be subjected to impact detection before leaving the factory, so as to ensure that the optical product can still maintain effective use function when subjected to the huge impact force. In addition, for the optical product used in a cold region or a hot region, the optical product also needs to be subjected to impact test at the lowest or highest allowable use environment temperature of the optical product, so as to test the connection strength between various parts of the optical product when the optical product is subjected to the impact force at the lowest or highest allowable use environment temperature, for example, the optical product is stored and subjected to impact test at-60 DEG C or +70 DEG C. To simulate such extreme environment to perform the impact test of the optical product, the common method is to build a high-low temperature laboratory which can enter and exit the indoor space to facilitate test operation, and then the optical product is placed on a corresponding test equipment in the laboratory, and when the temperature of the optical product reaches the test requirement, the tester can enter the laboratory and perform the impact test on the optical product. However, such high-low temperature laboratory not only occupies a large area and has a high cost, but also needs a large space for cooling or heating, thereby causing serious energy waste. SUMMARY

[0003] The present application aims to provide a wide-temperature-environment impact device which not only has a simple structure and occupies a small area, but also can save energy consumption.

[0004] For the wide-temperature-environment impact device, the technical scheme adopted by the present application is as follows: a wide-temperature-environment impact device, comprising a carrier table, a hammer, a reset member and a heat preservation box with an inner cavity, the heat preservation box is provided with a cold source channel and a heat source channel which are in communication with the inner cavity to change the temperature of the inner cavity, the heat preservation box comprises a first panel, the first panel is provided with a long strip-shaped through hole which is in communication with the outside and the inner cavity of the heat preservation box, a part of the carrier table passes through the long strip-shaped through hole and extends into the inner cavity, the moving direction of the hammer is consistent with the length direction of the long strip-shaped through hole, the hammer is used to impact the carrier table to make the carrier table move along the length direction of the long strip-shaped through hole, the reset member has two connecting ends, one of the two connecting ends is fixed, and the other is connected with the carrier table, so that the carrier table is reset after being impacted.

[0005] Compared with the prior art, the impact device simulates a wide temperature environment by the heat preservation box provided with cold and hot channels, the optical product is installed on the part of the object table extending into the cavity of the heat preservation box, when the temperature of the optical product reaches the test requirement, the object table is impacted by the impact hammer to make the optical product receive the impact force, so as to test the connection strength between parts of the optical product stored in the extreme environment after being impacted. Therefore, only the part needing impact is arranged in the heat preservation box, the cavity of the heat preservation box is small, a large amount of electric energy is not needed for heating or cooling, not only the structure is simple, the land occupation is small, and the manufacturing cost is low, but also the energy consumption can be saved.

[0006] Further, the impact device further comprises an impact cylinder and a pressure regulating valve connected with an external gas source, the length of the impact cylinder extends along the length direction of the long strip-shaped through hole, the impact cylinder is provided with a stroke intake port and a return intake port, the impact hammer is slidably arranged between the stroke intake port and the return intake port, the stroke intake port and the return intake port are communicated with the external gas source through the pressure regulating valve in turn to drive the impact hammer to reciprocate along the length direction of the impact cylinder and impact the object table.

[0007] Further, the impact device further comprises a solenoid valve for controlling the start and stop of the impact cylinder, and a fluid channel of the solenoid valve is connected in series with a fluid channel of the pressure regulating valve.

[0008] Preferably, the inlet of the solenoid valve is connected with the outlet of the pressure regulating valve, so that the compressed gas of the external gas source is communicated with two opposite piston surfaces of the impact hammer in turn after passing through the pressure regulating valve and the solenoid valve.

[0009] Further, the impact device further comprises a counting device for selectively detecting the reciprocating times of the impact hammer or the object table, the counting device comprises a control box and a proximity sensor electrically connected with the control box, the control box is used for receiving the signal output by the proximity sensor, and the proximity sensor is selectively arranged in the stroke range of the impact hammer or the object table.

[0010] Further, the impact device further comprises a slide rail fixed relative to the impact hammer, the slide rail comprises two straight rods parallel to each other, the length of the straight rod extends along the moving direction of the impact hammer, and the object table is slidably connected with the straight rod in a sleeved mode.

[0011] Further, the impact device further comprises a sealing ring surrounding the long strip-shaped through hole, and a mounting box with a cavity, the mounting box is fixedly connected with the outer surface of the first panel through the sealing ring, the cavity is communicated with the long strip-shaped through hole, the slide rail is arranged in the cavity, and the length of the slide rail extends along the length direction of the long strip-shaped through hole, one side of the object table facing the long strip-shaped through hole is provided with a guide rail penetrating through the cavity and the long strip-shaped through hole in sequence and extending into the cavity, one side of the object table facing the impact hammer is provided with an impact part, the impact part extends out of the mounting box, and a sealing element is arranged between the impact part and the mounting box, and the two connecting ends of the reset member are connected to the inner wall of the object table and the mounting box respectively.

[0012] Further, the impact device further comprises at least one sealing plate fixedly connected with the object table, one side of the sealing plate is slidably connected with the surface of the first panel, and the sealing plate always covers the long strip-shaped through hole in the sliding process, so as to cut off the connection between the cavity and the external environment.

[0013] Further, the first panel is provided with a magnetic element, the other side of the sealing plate is provided with a magnet, and the magnet is attractively connected with the magnetic element, so that the sealing plate is in abutting connection with the first panel.

[0014] Further, the sealing plate and the first panel are filled with lubricating grease.

[0015] In an embodiment, the impact device further comprises a fixed plate and an adjusting element, the fixed plate is fixed relative to the object table, the adjusting element is movably connected with the fixed plate, and the adjusting element is movable towards the object table, one side of the adjusting element facing the object table is connected with one connecting end of the reset member, and the other connecting end of the reset member is connected with the object table.

[0016] In another embodiment, the impact device further comprises a fixed plate and an adjusting element, the fixed plate is fixed relative to the object table, the adjusting element is movably connected with the object table, and the adjusting element is movable towards the fixed plate, one side of the adjusting element facing the fixed plate is connected with one connecting end of the reset member, and the other connecting end of the reset member is connected with the fixed plate.

[0017] In an embodiment, the incubator further comprises a cover body configured as the cavity of the first panel, the first panel is flexibly connected with the cover body, and the impact hammer and the object table are slidably connected with the first panel.

[0018] In another embodiment, the impact device further comprises a base separately arranged with the incubator, and the impact hammer and the object table are slidably connected with the base. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention, and are not intended to limit the present invention.

[0020] Figure 1 This is an exploded structural diagram of the impact device according to Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the impact device (impact hammer impact) according to Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the impact device according to Embodiment 1 of the present invention (moving platform);

[0023] Figure 4 This is a schematic diagram of the impact device according to Embodiment 1 of the present invention (impact hammer and platform reset);

[0024] Figure 5 This is a schematic diagram of another assembly structure of the slide rail and the platform according to Embodiment 1 of the present invention;

[0025] Figure 6 This is another structural schematic diagram of the impact device according to Embodiment 1 of the present invention (the insulated box is hidden).

[0026] Figure 7 This is a schematic diagram of the impact device (impact hammer impact) according to Embodiment 2 of the present invention;

[0027] Figure 8 This is a schematic diagram of the impact device according to Embodiment 2 of the present invention (moving platform);

[0028] Figure 9 This is a schematic diagram of the impact device in Embodiment 2 of the present invention (impact hammer and platform reset);

[0029] Figure 10 This is a schematic diagram of the impact device according to Embodiment 3 of the present invention;

[0030] Figure 11 This is an exploded structural diagram of the impact device according to Embodiment 4 of the present invention;

[0031] Figure 12 This is a top view of the impact device according to Embodiment 4 of the present invention;

[0032] Figure 13 yes Figure 12 AA sectional view. Detailed Implementation

[0033] It should be noted that the "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. The "upper", "lower", "left", "right", "front", "back", "top", "bottom" and the like used in the present application are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] As introduced in the background section, the existing laboratory for simulating the use environment to impact test the optical product not only occupies a large area, but also has high cost and high energy consumption. Therefore, it needs to be improved.

[0035] In order to better describe the technical scheme of the present application, the following Figures 1 to 13 The embodiment of the impact device provided by the present application is described. It should be noted that, in order to facilitate the understanding of the technical scheme of the present application, Figures 1 to 4 , Figures 7 to 11 , Figure 13 The impact cylinder 4 shown in the figure is a sectional view.

[0036] Example one

[0037] As Figures 1 to 4As shown, the embodiment one of the present application provides a wide temperature environment type impact device, which comprises a heat preservation box 1, a carrier platform 2, a reset member 3, an impact cylinder 4, a pressure regulating valve 5 and a slide rail 6. The heat preservation box 1 comprises a first panel 11 configured as an inner cavity 13 and a cover 12, the first panel 11 and the cover 12 are fixedly connected, the first panel 11 is provided with a long strip-shaped through hole 14 which communicates the outside of the heat preservation box 1 and the inner cavity 13, the heat preservation box 1 is further provided with a cold source channel 15 and a heat source channel 16 which communicate with the inner cavity 13 and are used for changing the temperature of the inner cavity 13, wherein the cold source channel 15 can communicate with a refrigeration device such as a refrigeration evaporator and a cold air circulating fan to provide cold to the inner cavity 13 so as to reduce the temperature of the inner cavity 13; the heat source channel 16 can communicate with a heating device such as an electric heating wire and a hot air circulating fan to provide heat to the inner cavity 13 so as to increase the temperature of the inner cavity 13. Of course, the same ventilation channel can also be used as the supply channel of the cold source and the heat source, and then the cold air or the hot air is provided to the inner cavity 13 through the ventilation channel. Therefore, the heat preservation box 1 can simulate a relatively wide range of environmental temperature to meet different use environments. The impact cylinder 4 comprises a cylinder body 44 fixed to the first panel 11, the length direction of the cylinder body 44 is consistent with the length direction of the long strip-shaped through hole 14, and the cylinder body 44 is provided with a stroke air inlet 42, a return stroke air inlet 43 and a hammer 41 located between the stroke air inlet 42 and the return stroke air inlet 43, the pressure regulating valve 5 is connected with an external air source, the stroke air inlet 42 and the return stroke air inlet 43 are connected with the external air source through the pressure regulating valve 5 in turn to drive the hammer 41 to reciprocate along the length direction of the cylinder body 44 and impact the carrier platform 2, the slide rail 6 is fixed to the first panel 11, and the length of the slide rail 6 extends along the length direction of the long strip-shaped through hole 14, the carrier platform 2 is slidably connected to the slide rail 6, and one side of the carrier platform 2 facing the long strip-shaped through hole 14 is provided with a guide rail 21 used for clamping a to-be-tested object, the guide rail 21 passes through the long strip-shaped through hole 14 and penetrates into the inner cavity 13 of the heat preservation box 1, and the guide rail 21 can be a commonly used Picatinny guide rail of a firearm or a dovetail type guide rail. The carrier platform 2 is further provided with an impact surface 2a facing the hammer 41 and a buffer surface 2b opposite to the impact surface 2a, the impact surface 2a is located in the stroke range of the hammer 41 so that the hammer 41 can impact the carrier platform 2, the first panel 11 is provided with a fixed plate 7 opposite to the buffer surface 2b, and the reset member 3 has two connection ends, one of which is fixed to the fixed plate 7 and the other of which is connected to the buffer surface 2b so that the carrier platform 2 is reset after being impacted.

[0038] It should be noted that the long hole 14 refers to the outer contour of the hole, which is long, such as an oblong or a rectangle, and can not only accommodate the carrier 2, but also has a space for the carrier 2 to move along the length of the hole. The fixing plate 7 can also be opposite to other surfaces of the carrier 2, i.e. surfaces other than the buffer surface 2b, such as the impact surface 2a or the left or right surface or the top or bottom surface of the carrier 2, and the two ends of the reset member 3 are connected to the fixing plate 7 and the surface of the carrier 2 opposite to the fixing plate 7, respectively, so that the carrier 2 is reset after being impacted. The reset member 3 can be an elastic member with two connection ends, such as a spring or a spring piece or an elastic rubber column, and the reset member 3 can also be a component with a telescopic end, such as a cylinder. In addition, the length direction of the cylinder body 44 is consistent with the length direction of the long hole 14, so that the moving direction of the hammer 41 is consistent with the length direction of the long hole 14, such as the moving direction of the hammer 41 is substantially parallel to the length direction of the long hole 14. Of course, the moving direction of the hammer 41 and the length direction of the long hole 14 are allowed to have a certain inclination, as long as the hammer 41 moves from one end of the long hole 14 to the other end of the long hole 14, it can be understood that the moving direction of the hammer 41 is consistent with the length direction of the long hole 14.

[0039] It can be understood that the stroke inlet port 42 and the return inlet port 43 can be alternately communicated with the external gas source through the pressure regulating valve 5 by the gas distributor 20 arranged between the impact cylinder 4 and the pressure regulating valve 5. The gas distributor 20 can be a reciprocating slide valve, the inlet of the slide valve is connected with the outlet of the pressure regulating valve 5, and the two outlets of the slide valve are connected with the stroke inlet port 42 and the return inlet port 43, respectively. When the spool of the slide valve reciprocates, the stroke inlet port 42 and the return inlet port 43 can be alternately communicated with the external gas source through the pressure regulating valve 5. The gas distributor 20 can also be a stroke solenoid valve and a return solenoid valve, the inlet of the stroke solenoid valve and the inlet of the return solenoid valve are connected with the outlet of the pressure regulating valve 5, the outlet of the stroke solenoid valve is connected with the stroke inlet port 42, and the outlet of the return solenoid valve is connected with the return inlet port 43. By alternately opening and closing the stroke solenoid valve and the return solenoid valve, the stroke inlet port 42 and the return inlet port 43 can be alternately communicated with the external gas source through the pressure regulating valve 5.

[0040] Specifically, as Figure 2 and Figure 3As shown, during the impact test, the gas distributor 20 makes the compressed gas from the external gas source enter the cylinder 44 through the stroke intake port 42 and push the impact hammer 41 to move quickly towards the impact surface 2a of the object table 2, so that the object table 2 is impacted and moved, thereby simulating the recoil force of the firearm after shooting. The optical product installed on the guide rail 21 of the object table 2 can simulate the impact force of the optical product during the shooting process of the firearm, so as to test the strength of each part of the optical product and the connection strength between the parts. Figure 4 As shown, after the impact is completed, the gas distributor 20 makes the compressed gas from the external gas source enter the cylinder 44 through the return intake port 43 and push the impact hammer 41 to reset in the opposite direction of the impact, and the object table 2 is reset under the action of the reset member 3, thereby completing an impact cycle. When the gas distributor 20 makes the compressed gas from the external gas source enter the cylinder 44 through the stroke intake port 42 again, the next impact cycle starts. In addition, it can be understood that the greater the pressure of the compressed gas entering the cylinder 44, the greater the impact acceleration of the impact hammer 41. At the same time, because the impact acceleration is increased, the time consumed by the impact hammer 41 to complete an impact cycle is shortened, so the impact cycle is shorter. The pressure regulating valve 5 can maintain the pressure of the compressed gas entering the cylinder 44 at a certain value, and after debugging, the relationship between the pressure of the compressed gas, the impact acceleration of the impact hammer 41 and the impact frequency of the impact hammer 41 can be determined. If a certain impact acceleration and impact frequency (for example, an impact acceleration of 100g and an impact frequency of 300 times / min, g is the acceleration of gravity) are required for the impact test, adjusting the pressure regulating valve 5 to maintain the pressure of the compressed gas entering the cylinder 44 at a corresponding value can meet the requirements of the impact test, which is not only convenient to operate, but also simple and fast. The slide rail 6 can constrain the movement direction of the object table 2, so that the object table 2 can only move linearly along the length of the slide rail 6 after being impacted, further ensuring the stability of the impact process, and also facilitating the quick reset of the object table 2.

[0041] Therefore, compared with the prior art, this impact device uses the reciprocating motion of the hammer 41 of the impact cylinder 4 driven by an external air source to impact the platform 2, thereby simulating the recoil of a firearm. Since both the stroke and return of the hammer 41 are driven by gas, the impact can be continuous and rapid. Furthermore, both the impact acceleration and impact frequency are controllable; that is, by adjusting the gas pressure entering the impact cylinder 4, the impact acceleration and impact frequency of the hammer 41 can be changed. The greater the gas pressure, the greater the impact acceleration and impact frequency. Therefore, this invention is not only simple in structure and easy to install, with low manufacturing cost, but also allows for adjustment of the impact acceleration and impact frequency according to the requirements of the impact test, making it widely adaptable. Furthermore, this impact device simulates a wide-temperature environment using an insulated box 1 equipped with hot and cold channels. Optical products are mounted on the portion of the stage 2 that extends into the inner cavity 13 of the insulated box 1, such as the guide rail 21. When the temperature of the optical product reaches the test requirements, the impact cylinder 4 is activated, causing the impact hammer 41 to impact the stage 2, subjecting the optical product to impact force. This is used to test the connection strength between parts of the optical product after it has been impacted in an extreme environment. Therefore, this invention only places the parts requiring impact testing inside the insulated box 1, resulting in a smaller inner cavity 13. Both heating and cooling do not require a large amount of electrical energy, leading to a simple structure, small footprint, low manufacturing cost, and energy savings. It should be noted that a wide-temperature environment refers to a relatively broad range of ambient temperature variations, such as from -60℃ to +70℃. The insulated box 1 uses cold source channels 15 and heat source channels 16 to change the temperature of the inner cavity 13, thereby simulating any ambient temperature within the aforementioned temperature range.

[0042] like Figure 1 The diagram shown is for ease of understanding of the technical solution of this invention. Figure 1 (The diagram shows a partially broken straight rod). To prevent the platform 2 from overturning during impact and to make it easier to slide, in this embodiment, the slide rail 6 includes two parallel straight rods. The length of the straight rods extends along the moving direction of the impact hammer 41, and the platform 2 is slidably connected to the straight rods. It should be noted that the slidable connection means that the platform 2 has a recess 23 that restricts the straight rods from detaching from the platform 2. For example, it could be a through hole or a groove with an opening width smaller than the maximum diameter of the straight rod. The straight rod passes through the recess 23 to support the platform 2, so that the platform 2 can only slide along the length of the straight rod. The two roughly parallel straight rods can restrain each other, preventing the platform 2 from overturning during impact, while also having low friction to facilitate the sliding of the platform 2. In this embodiment, the two parallel straight rods are arranged on the left and right sides of the platform 2, or on the upper and lower sides of the platform 2, or both on the same side of the platform 2.

[0043] Preferably, the straight rod has a cross section which is alternatively circular, square or trapezoidal.

[0044] As Figure 5 shown in another embodiment, the slide rail 6 comprises a dovetail groove, the length of which extends along the moving direction of the hammer 41, and the stage 2 is provided with a convex part 22 which cooperates with the dovetail groove. The convex part 22 is embedded in the dovetail groove and can slide along the length of the dovetail groove.

[0045] In order to control the impact frequency, in the present embodiment, the impact device further comprises a counting device 8 for detecting the reciprocating times of the hammer 41 or the stage 2, the counting device 8 comprises a control box 81 and a proximity sensor 82 which is electrically connected to the control box 81, and the control box 81 is used to receive the signal output by the proximity sensor 82. As Figure 4 shown, if it is used to detect the reciprocating times of the hammer 41, the proximity sensor 82 is installed on the cylinder body 44 of the impact cylinder 4, and the proximity sensor 82 is within the stroke range of the hammer 41; as Figure 6 shown, if it is used to detect the reciprocating times of the stage 2, the proximity sensor 82 is fixed relative to the stage 2, for example, the proximity sensor 82 is installed on the first panel 11, and the proximity sensor 82 is within the stroke range of the stage 2. It can be understood that the above-mentioned control box 81 is provided with a display screen 811 for displaying the times of the hammer 41 or the stage 2 approaching the proximity sensor 82, and the display screen 811 is installed at a position which is easy to observe in the impact device. When the hammer 41 or the stage 2 approaches the proximity sensor 82, the proximity sensor 82 outputs a pulse switch signal, which is sent to the control box 81 for counting, and is displayed on the display screen 811 of the control box 81, so as to count and display the impact times of the hammer 41 impacting the stage 2. Within a certain time, when the impact times displayed by the control box 81 reach the requirement, the external air source can be cut off, so that the hammer 41 stops moving.

[0046] As Figure 1As shown, in order to control the start and stop of the impact cylinder 4, in the embodiment, the impact device further comprises an electromagnetic valve 9 for controlling the start and stop of the impact cylinder 4, and the fluid passage of the electromagnetic valve 9 is connected in series with the fluid passage of the pressure regulating valve 5. After the electromagnetic valve 9 is powered or subjected to the magnetic force of a magnet (for example, a magnetic ring is sleeved on the valve rod of the electromagnetic valve 9), the valve body is opened to make the fluid passage of the electromagnetic valve 9 communicate with the fluid passage of the pressure regulating valve 5, and the compressed gas of the external gas source enters the cylinder body 44 through the stroke gas inlet 42 or the return stroke gas inlet 43, and the impact cylinder 4 starts to work. After the electromagnetic valve 9 loses power or loses the magnetic force of the magnet (for example, the magnetic ring sleeved on the valve rod of the electromagnetic valve 9 is removed), the valve body is closed to cut off the external gas source, and the impact cylinder 4 stops working, so that the operation of starting and stopping the impact cylinder 4 is quick and convenient. It should be noted that the relative position of the electromagnetic valve 9 and the pressure regulating valve 5 is not limited in the embodiment. When the electromagnetic valve 9 is arranged between the external gas source and the pressure regulating valve 5, the electromagnetic valve 9 needs to be opened to make the compressed gas communicate with the pressure regulating valve 5 to know the pressure value regulated by the pressure regulating valve 5, so as to determine whether the pressure value meets the required set value. When the electromagnetic valve 9 is arranged after the outlet of the pressure regulating valve 5, the compressed gas is always communicated with the pressure regulating valve 5 regardless of whether the electromagnetic valve 9 is in an open state, so the pressure value regulated by the pressure regulating valve 5 can be known. Moreover, for the impact test with impact frequency requirements, the pressure of the compressed gas needs to be adjusted before the impact cylinder 4 starts to work, that is, the set value of the pressure regulating valve 5 is adjusted in the state that the compressed gas is communicated with the pressure regulating valve 5. In order to facilitate the pressure regulating operation of the pressure regulating valve 5, preferably, the inlet of the electromagnetic valve 9 is connected with the outlet of the pressure regulating valve 5, so that the compressed gas of the external gas source is communicated with the two opposite piston surfaces of the hammer 41 in turn after passing through the pressure regulating valve 5 and the electromagnetic valve 9. In this way, the pressure regulating operation before the impact cylinder 4 starts to work can be realized by closing the electromagnetic valve 9.

[0047] Further, in order to realize automatic control of the impact frequency, in the embodiment, the electromagnetic valve 9 is electrically connected with the control box 81, and when the impact times of the impact cylinder 4 reach a set value, the control box 81 controls the electromagnetic valve 9 to be closed. In this way, only by setting the impact times required by the test, the electromagnetic valve 9 can be opened to start the impact test, and when the impact times reach the set value, the electromagnetic valve 9 is automatically closed to end the impact test, so as to realize the purpose of automatic control of the impact frequency.

[0048] When the reset action of the reset member 3 decays, the object table 2 cannot be reset in time or cannot be restored to the set position, thereby affecting the impact cycle of the hammer 41 and the impact effect. In order to ensure that the object table 2 can be reset in time and further ensure the accuracy of the impact test, in the embodiment, the impact device further comprises a fixed plate 7 and an adjusting member 10. The fixed plate 7 is fixed to the first panel 11, and the adjusting member 10 is arranged on the fixed plate 7 and connected with the reset member 3. The adjusting member 10 is used to adjust the reset force of the reset member 3. When the reset member 3 is in the reset state, the adjusting member 10 is in the reset state, and the reset force of the reset member 3 is adjusted by the adjusting member 10. When the adjusting member 10 is in the reset state, the reset force of the reset member 3 is the maximum, and the reset member 3 can reset the object table 2 in time. When the adjusting member 10 is in the non-reset state, the reset force of the reset member 3 is the minimum, and the reset member 3 cannot reset the object table 2 in time. Figure 4As shown, if the adjusting member 10 is movably connected to the fixed plate 7, and the adjusting member 10 can move towards the platform 2, for example, if the adjusting member 10 is threadedly connected to the fixed plate 7, then the side of the adjusting member 10 facing the platform 2 is connected to one end of the resetting member 3, and the other end of the resetting member 3 is connected to the platform 2. Rotating the adjusting member 10 pushes the resetting member 3 and the platform 2 together to move a certain distance towards the punch 41, thereby eliminating the adverse effects caused by the attenuation of the resetting effect of the resetting member 3; Figure 6 As shown, if the adjusting member 10 is movably connected to the platform 2 and can move toward the fixed plate 7, for example, if the adjusting member 10 is threadedly connected to the platform 2, then the side of the adjusting member 10 facing the fixed plate 7 is connected to one end of the resetting member 3, and the other end of the resetting member 3 is connected to the fixed plate 7. Rotating the adjusting member 10 causes it to move toward the fixed plate 7, thereby pushing the platform 2 toward the punch 41 a certain distance to eliminate the adverse effects caused by the attenuation of the resetting effect of the resetting member 3.

[0049] like Figures 2 to 4 As shown, to prevent external air from entering the insulation chamber 1 during low-temperature impact testing and causing frost to form inside the insulation chamber 1, and also to prevent the cold or heat inside the insulation chamber 1 from leaking to the external environment, thereby further reducing energy consumption, a leak-proof structure can be used in this embodiment to achieve the above objectives. This leak-proof structure includes a sealing ring 30 and a mounting box 40 with a cavity. The sealing ring 30 surrounds the elongated through hole 14. The mounting box 40 is fixedly connected to the outer surface of the first panel 11 through the sealing ring 30, and the cavity communicates with the elongated through hole 14. The slide rail 6 is set... Inside the cavity, the slide rail 6 extends along the length of the elongated through hole 14. The platform 2 is slidably connected to the slide rail 6. The guide rail 21 passes through the cavity and the elongated through hole 14 in sequence and extends into the inner cavity 13 of the insulation box 1. The side of the platform 2 facing the hammer 41 is provided with an impact part 24. The impact part 24 extends out of the mounting box 40, and a sealing element 25 is provided between the impact part 24 and the mounting box 40. The impact surface 2a is provided on the end face of the impact part 24. The fixing plate 7 is provided on any inner wall of the mounting box 40 facing the platform 2. The two connecting ends of the reset element 3 are respectively connected to either inner wall of the platform 2 and the mounting box 40. This leak-proof structure isolates the platform 2 and the elongated through hole 14 from the external environment through the mounting box 40, so that air from the external environment cannot enter the inner cavity 13 through the elongated through hole 14, thereby preventing frost from forming inside the insulation box 1.

[0050] It should be noted that the aforementioned impact device can be used not only to test the strength of optical products, but also to test the strength of firearms, or to test the shock resistance of products.

[0051] Example 2

[0052] As Figures 7 to 9 shown, the difference between this embodiment and embodiment one is that, in this embodiment, the impact device adopts another anti-leakage structure to prevent external air from entering the inside of the insulation box 1 when low-temperature impact test is conducted, thereby causing the inside of the insulation box 1 to frost. The another anti-leakage structure comprises a sealing plate 50 fixedly connected with the object table 2. The lower surface of the sealing plate 50 is in contact with the inner surface of the first panel 11, and the sealing plate 50 can slide with the object table 2. The sealing plate 50 covers the long strip-shaped through hole 14 at all times in the process of sliding, so as to cut off the connection between the inner cavity 13 and the external environment. In order to make the sealing plate 50 more easily slide, grease is filled between the lower surface of the sealing plate 50 and the inner surface of the first panel 11, so as to reduce the sliding friction and further improve the sealing performance. A magnetic member (not shown in the figure) can also be arranged on the first panel 11. Correspondingly, a magnet 501 is arranged on the upper surface of the sealing plate 50. The magnet 501 is in attraction connection with the magnetic member, so that the sealing plate 50 is pressed against the inner surface of the first panel 11, and the lower surface of the sealing plate 50 is in contact with the inner surface of the first panel 11 more tightly. It should be noted that the technical solution of filling the grease and the technical solution of connecting by the magnetic force can be applied separately or in combination. In order to further cut off the connection between the inner cavity 13 and the external environment, the impact device further comprises another sealing plate (not shown in the figure) fixedly connected with the object table 2. The upper surface of the sealing plate is in contact with the outer surface of the first panel 11, and the sealing plate can slide with the object table 2. The sealing plate covers the long strip-shaped through hole 14 at all times in the process of sliding.

[0053] In summary, the anti-leakage structure covers the long strip-shaped through hole 14 by at least one sealing plate 50, and does not hinder the sliding of the object table 2 at the same time. Therefore, the long strip-shaped through hole 14 is isolated from the external environment while the impact function is ensured, so that the air in the external environment cannot enter the inner cavity 13 through the long strip-shaped through hole 14, thereby preventing the inside of the insulation box 1 from frosting and the cold energy from leaking out.

[0054] It should be noted that the another anti-leakage structure described in this embodiment can be applied separately or in combination with the one anti-leakage structure described in embodiment one.

[0055] Embodiment three

[0056] As Figure 10 shown, the difference between this embodiment and embodiment one or embodiment two is that, in this embodiment, the first panel 11 and the cover 12 are flexibly connected, that is, the first panel 11 and the cover 12 can move relatively, and then the first panel 11 and the cover 12 are connected by a flexible material 70, such as a coated canvas having waterproof and windproof functions. Not only can the first panel 11 reduce the transmission of vibration to the cover 12, but also can prevent the air outside the insulation box 1 from entering the inner cavity 13.

[0057] Embodiment four

[0058] As Figures 11 to 13 shown, the difference between embodiment four and embodiment two is that the wide temperature environment type impact device provided by embodiment four further comprises a base 60 which is separately arranged from the incubator 1, the cylinder body 44 and the slide rail 6 are both fixed to the base 60, and the length of the cylinder body 44 and the length of the slide rail 6 both extend along the length direction of the long strip-shaped through hole 14, the object table 2 is slidably connected to the slide rail 6, and the guide rail 21 of the object table 2 penetrates through the long strip-shaped through hole 14 and extends into the inner cavity 13 of the incubator 1, and the impact hammer 41 arranged in the cylinder body 44 reciprocates along the length direction of the cylinder body 44 to impact the object table 2, so as to drive the object table 2 to reciprocally slide along the length direction of the long strip-shaped through hole 14. In this embodiment, the sealing plate 50 fixedly connected to the object table 2 is used to cut off the connection between the long strip-shaped through hole 14 and the external environment, although the sealing plate 50 is in contact with the first panel 11, the sealing plate 50 will not push the first panel 11 to slide when it slides because of the sliding friction between the sealing plate 50 and the first panel 11, in addition, the other movable part of the impact device is the impact hammer 41, and the impact hammer 41 will not push the first panel 11 to slide because it only contacts with the base 60. Therefore, it can be seen that the impact device provided by this embodiment can minimize the vibration generated by the reciprocating movement of the impact hammer 41 and transmit to the incubator 1, thereby prolonging the service life of the incubator 1.

[0059] In addition, the difference between this embodiment and embodiment two is that the fixing plate 7 is fixed to the base 60, if the adjusting member 10 is movably connected to the fixing plate 7, and the adjusting member 10 can move towards the object table 2, for example, the adjusting member 10 is threadedly connected to the fixing plate 7, then one side of the adjusting member 10 facing the object table 2 is connected to one connecting end of the reset member 3, and the other connecting end of the reset member 3 is connected to the object table 2, rotating the adjusting member 10 to drive the reset member 3 and the object table 2 to move a certain distance towards the impact hammer 41, thereby eliminating the adverse effects caused by the attenuation of the reset action of the reset member 3; if the adjusting member 10 is movably connected to the object table 2, and the adjusting member 10 can move towards the fixing plate 7, for example, the adjusting member 10 is threadedly connected to the object table 2, then one side of the adjusting member 10 facing the fixing plate 7 is connected to one connecting end of the reset member 3, and the other connecting end of the reset member 3 is connected to the fixing plate 7, rotating the adjusting member 10 to drive the object table 2 to move a certain distance towards the impact hammer 41, thereby eliminating the adverse effects caused by the attenuation of the reset action of the reset member 3.

[0060] Embodiment five

[0061] The difference between the embodiment and the embodiment three is that, in the embodiment, the impact cylinder 4 and the pressure regulating valve 5 of the impact device are replaced by the impact hammer, the motor and the transmission device disclosed in the utility model patent with the patent number ZL201821830987.X and the name of a gun sight anti-impact performance test bench. The impact hammer is slidingly connected to the first panel 11, and the length direction of the impact hammer is consistent with the length direction of the long strip-shaped through hole 14. The transmission device is arranged between the impact hammer and the motor and is used for converting the rotating output of the motor into the linear motion of the impact hammer. After the motor is started, the transmission device drives the impact hammer to reciprocate along the length direction of the long strip-shaped through hole 14 and impact the object table 2. The content of paragraphs 0022 to 0027 of the specification of the utility model patent with the patent number ZL201821830987.X and the name of a gun sight anti-impact performance test bench and the corresponding drawings are incorporated by reference into the embodiment as part of the content of the embodiment to describe the structure of the transmission device.

[0062] Embodiment six

[0063] The difference between the embodiment and the embodiment four is that, in the embodiment, the impact cylinder 4 and the pressure regulating valve 5 of the impact device are replaced by the impact hammer, the motor and the transmission device disclosed in the utility model patent with the patent number ZL201821830987.X and the name of a gun sight anti-impact performance test bench. The impact hammer is slidingly connected to the base 60, and the length direction of the impact hammer is consistent with the length direction of the long strip-shaped through hole 14. The transmission device is arranged between the impact hammer and the motor and is used for converting the rotating output of the motor into the linear motion of the impact hammer. After the motor is started, the transmission device drives the impact hammer to reciprocate along the length direction of the long strip-shaped through hole 14 and impact the object table 2. The content of paragraphs 0022 to 0027 of the specification of the utility model patent with the patent number ZL201821830987.X and the name of a gun sight anti-impact performance test bench and the corresponding drawings are incorporated by reference into the embodiment as part of the content of the embodiment to describe the structure of the transmission device.

[0064] The above is only a preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiments, as long as any same or similar means achieves the technical effect of the present application, it should belong to the protection scope of the present application.

Claims

1. A wide temperature environment type impact device, characterized by: The impact device comprises a carrier (2), a hammer (41), a reset member (3), and a heat preservation box (1) with an inner cavity (13), the heat preservation box (1) is provided with a cold source channel (15) and a heat source channel (16) in communication with the inner cavity (13) to change the temperature of the inner cavity (13), the heat preservation box (1) comprises a first panel (11) provided with a long strip-shaped through hole (14) in communication with the outside of the heat preservation box (1) and the inner cavity (13), a part of the carrier (2) passes through the long strip-shaped through hole (14) and extends into the inner cavity (13) to mount optical products, the moving direction of the hammer (41) is consistent with the length direction of the long strip-shaped through hole (14), the hammer (41) is used for impacting the carrier (2) to move the carrier (2) along the length direction of the long strip-shaped through hole (14), the reset member (3) has two connection ends, one of the two connection ends is fixed, and the other is connected with the carrier (2) to reset the carrier (2) after being impacted.

2. The wide temperature environmental impactor of claim 1, wherein: The impact device further comprises an impact cylinder (4) and a pressure regulating valve (5) connected with an external air source, the length of the impact cylinder (4) extends along the length direction of the long strip-shaped through hole (14), the impact cylinder (4) is provided with a stroke intake port (42) and a return intake port (43), the hammer (41) is slidably arranged between the stroke intake port (42) and the return intake port (43), the stroke intake port (42) and the return intake port (43) are alternately communicated with the external air source through the pressure regulating valve (5) to drive the hammer (41) to reciprocate along the length direction of the impact cylinder (4) and impact the carrier (2).

3. A wide temperature environmental impactor as claimed in claim 2, wherein: The impact device further comprises a solenoid valve (9) for controlling the start and stop of the impact cylinder (4), and a fluid channel of the solenoid valve (9) is connected in series with a fluid channel of the pressure regulating valve (5).

4. The wide temperature environmental impactor of claim 1, wherein: The impact device further comprises a counting device (8) for selectively detecting the reciprocating times of the hammer (41) or the carrier (2), the counting device (8) comprises a control box (81) and a proximity sensor (82) electrically connected with the control box (81), the control box (81) is used for receiving a signal output by the proximity sensor (82), and the proximity sensor (82) is selectively arranged in a stroke range of the hammer (41) or the carrier (2).

5. The wide temperature environmental impactor of claim 1, wherein: The impact device further comprises a slide rail (6) fixed relative to the hammer (41), the slide rail (6) comprises two straight rods parallel to each other, the length of the straight rods extends along the moving direction of the hammer (41), and the carrier (2) is slidably connected with the straight rods in a sleeved manner.

6. A wide temperature environmental impact device as claimed in claim 5, wherein: The impact device further comprises a sealing ring (30) surrounding the long strip-shaped through hole (14) and a mounting box (40) with a cavity, the mounting box (40) is fixedly connected with the outer surface of the first panel (11) through the sealing ring (30), and the cavity is communicated with the long strip-shaped through hole (14), the slide rail (6) is arranged in the cavity, and the length of the slide rail (6) extends along the length direction of the long strip-shaped through hole (14), one side of the object table (2) facing the long strip-shaped through hole (14) is provided with a guide rail (21) penetrating through the cavity and the long strip-shaped through hole (14) in sequence and extending into the inner cavity (13), one side of the object table (2) facing the impact hammer (41) is provided with an impact part (24), the impact part (24) extends out of the mounting box (40), and a sealing element (25) is arranged between the impact part (24) and the mounting box (40), and the two connecting ends of the reset member (3) are connected to the inner wall of the object table (2) and the mounting box (40) respectively.

7. The wide temperature environmental impactor of claim 1, wherein: The impact device further comprises at least one sealing plate (50) fixedly connected with the object table (2), one side of the sealing plate (50) is slidably connected with the surface of the first panel (11), and the sealing plate (50) always covers the long strip-shaped through hole (14) during sliding to cut off the connection between the inner cavity (13) and the external environment.

8. A wide temperature environmental impact device as claimed in claim 7, wherein: The first panel (11) is provided with a magnetic element, the other side of the sealing plate (50) is provided with a magnet (501), the magnet (501) is attractively connected with the magnetic element, so that the sealing plate (50) is in abutting connection with the first panel (11).

9. The wide temperature environmental impactor of claim 1, wherein: The impact device further comprises a fixed plate (7) and an adjusting member (10), the fixed plate (7) is fixed relative to the object table (2), the adjusting member (10) is movably connected with the fixed plate (7), and the adjusting member (10) can move towards the object table (2), one side of the adjusting member (10) facing the object table (2) is connected with one connecting end of the reset member (3), and the other connecting end of the reset member (3) is connected with the object table (2).

10. The wide temperature environmental impactor of claim 1, wherein: The impact device further comprises a fixed plate (7) and an adjusting member (10), the fixed plate (7) is fixed relative to the object table (2), the adjusting member (10) is movably connected with the fixed plate (7), and the adjusting member (10) can move towards the object table (2), one side of the adjusting member (10) facing the object table (2) is connected with one connecting end of the reset member (3), and the other connecting end of the reset member (3) is connected with the object table (2).

11. A wide temperature environmental impact device according to any one of claims 1 to 10, wherein: The incubator (1) further comprises a cover body (12) configured as the inner cavity (13) with the first panel (11), the first panel (11) is flexibly connected with the cover body (12), and the impact hammer (41) and the object table (2) are slidably connected with the first panel (11).

12. A wide temperature environmental impact device according to any one of claims 1 to 5 or 7 to 10, wherein: The impact device further comprises a base (60) which is arranged separately from the incubator (1), and the impact hammer (41) and the object carrier (2) are both slidably connected to the base (60).

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